Liquid-cooling apparatus.



J. WILLMANN.

LIQUID COOLING APPARATUS. APPLICATION EILEE JUN-13, 1910. RENEWED Nov. 25, 1911.

1,015,660. Patented Jan. 23, 1912.

2 SHEETS-SHEET 1.

J. WILLMANN.

LIQUID COOLING APPARATUS.

APPLICATION FILED JUNE 3, 1910. RENEWED NOV. 25. 1911.

Patented Jan. 23, 1912.

2 SHEETSSHBET 2.

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Q F I -IE w v N E .x mm l 1 ww wk llll .0, 0 (\0 1 e v 6 J\ 6 6. 5 k N BN1 Q a 1 l 7m 1 6 JOSEPH WILLMANN, or

DERBY, CONNECTICUT, ASSIGNOR TO DAIRY MACHINERY AND CONSTRUCTION COMPANY, INCORPORATED, OF DERBY, CONNECTICUT, A CORPORA- TION OF CONNECTICUT.

LIQUID-COOLING APPARATUS.

Application filed Julie 3, 1910,

Specification of Letters Patent Serial No. 564,800. BenewedNovember 25, 1911.

Serial no. 662,469.

To all whom it may concern:

Be it known that I, at present a subject of the Emperor of Germany, having announced my intention of becoming a citizen of the United States, residing at Derby, in the county of New Haven and State of Connecticut, have invented cei'tain new and useful Improvements in Liquid-Cooling Apparatus, of which the following is a specification.

My present invention relates to improvements in apparatus for interchanging temperatures between liquids such, for example, as-between a heated liquid and a cooling liquid or medium, and it has for its object primarily to provide an improved apparatus of this character which is especially adapted for use in the handling of milk and similar liquids during or upon the,completion of a pasteurizing operation, the improved apparatus causing the milk or liquid under treatment to be divided into a plurality of streams or flowing bodies, each of relatively small sizeor diameter whereby such liquid is effectively exposed to the heating or cooling-action of the heat-interchanging medium, the capacity of an apparatus of given size being thereby materially increased,-and greater efficiency and perfection in the operation is insured.

More specifically, the invention provides an improved cooling apparatus for liquids, theapparatus being of the type wherein the liquid to be cooled is inclo'sed binations and arrangements of parts, all as will be hereinafter more fully described, the

novel features being pointed out particularly in the claims at the end of the specification.

In the accompanying drawing :Figure 1 represents an end elevation of a cooling apparatus constructed in accordance with JOSEPH WILLMANN,

understood, however,

and it is-di. vided into such small bodies that the brine the apparatus being such thatand comconsisting of an my present invention; Fig. 2 represents av s1de elevation of the apparatus as shown in Fig. 1, a portion of the figure being broken Patented Jan. 23,1912.

awayto show'the manner in which the elements are supported; Fig. 3 is a'detail sectional view of one of the elements of. the apparatus showing the manner in which the fluid-conducting tubesare mounted within the incasing tubes; .Fig. 4 represents a section on the line 4-4 of Fig. 3; and Figs. 5 and 6 represent transverse sections of one of the elements showing the passages for the liquidto be treated. Similar parts are designated by the same reference characters in the several views.

In the accompanying drawing, I have shown the preferred embodiment of my invention and in the specific description thereof,- I shall refer cooling 'milk and to it asan apparatus for other liquids. It will be that the apparatus could be employed for pasteurizing milk by the circulation of Water or steam at an appropriate temperature through the apparatus instead of a brine or other cooling medium. It will be understood also that the invention is not necessarily limited to the specific details of construction-shown, as certain modifications may that the apparatus may be applied to the best advantage according to the requirements or circumstances of each, particular case.

be made in order In the present instance, the apparatus is provided with a base 1 which may bev of any suitable construction, and the fluid-conducting elements of the apparatus are mounted in superposed relation thereon. For this purpose, the base 1 supports frames 2, each frame being connected atthe top by tieb0lts'3, and a. suitable number of bolts or.

studs 4 project inwardly'from the sides of the respective frames.

In order to economize space and 'to also the operation of the apparatus,jthe liquidconductingelements are mounted in. z'ig-z'ag relation, the studs 4 being therefore staggered. 3

The liquid-conducting elements of the apparatus are preferably formed of a suitable number of units or elements, each element outer tube 5 which is adapted to contain and confine the brine or cool-. ing medium, and the opposite ends of each insure efiiciencyin.

streams or bodies,

having an offset tapered tube 5 are fitted into sockets 6, each socket having a conducting passage 7 which leads from one tube to the next adjacent one. The passages 7 alternate, that is to say, one of these passages leads from one end of an element to the adjacent end of a second element, and the next passage 7 leads from the opposite end of the second element to the adacent end of the third element, this rela-' tion of the intercommunicating passages continuing throughout its series. The lowermostelement is provided with a socket 8 having an inlet 9 to receive the brine or cool ing medium while the uppermost element has a socketlO provided with an outlet 11 for the brine or cooling medium. In employing the apparatus as a cooler, it is preferably operated upon the regenerative principle, that is to say, the hot liquid to be cooled flows in an opposite direction to the flow of the brine or cooling medium. The upper socket 10 is therefore provided with an inlet 12 to receive the hot milk or liquid to be cooled, while the lower socket 8 has an outlet 13 for the discharge of the cooled milk or liquid.

According to the present invention, the liquid to be treated is divided into numerous each of a relatively small size or diameter, whereby heat may be quickly interchanged between the liquld in the form of the small streams or bodles and the liquid contained in the outer inclosing tubes. In. the present instance, each inclosing tube 5 contains a plurality of comparatively small tubes 14. In' order to render these tubes readily removable for cleaning or sterilization and to provide a perfectly tight joint between them and the inclosing tu es'so as to prevent mixing of the liquids, the opposite ends of the small tubes 14 aretightly fitted into heads 15, these heads, however, being of a size that'will permit them and the tops to be readily removed and replaced as a unit with respect to the inclosing tube or casing. To'insure a perfectly tight fit between these heads and the inclosing tubes or casings, each head 15' is pro-' vided with an outwardl tapered surface 16. Each casing 6 is provi ed with a flange 17 surface 18, and a gasket 19 of relatively soft rubber or other suitable material is firmly packedinto the space formed between the taper surfaces 16 and 18. I preferably provide means which performs the dual function of. packing the gasket 19 firmly in position and forming communication between the inner set of small tubes 14 of one member and the corresponding tubes of the adjacent member.

is means consists in the present instance of'anelbow 20, the ends 21 of which are adapted to fit'within the flanges 17 of the socket 6 and act as glands to compress the gaskets 19, and the elbow may be held in jections on the oppositesides of the socket 6, and a 22.being provlded in the present instance,

the ends of which are provided with pro- 23 to cooperate with seats 24 formed,

clamping screw 25 is fitted in the yoke and its end is adapted to bear upon a seat 26 formed in an intermediate portion of the elbow.

A somewhat similar construction may be provided for forming a tight joint at the inlet and outlet for the liquid to be treated, the socket 8 for instance having a flange 27 provided with a taper surface 28 which is opposed to the taper surface 16 of the adjacent head 15, a gasket 29 is inserted between the opposed taper surfaces, the nipple 30 which serves for the attachment of the inlet or discharge pipe is constructed to bear upon the gasket and has a circumferential shoulder 31, and a nut 32 is threaded into the flange 27 and bears upon the shoulder 31 of the nipple. The several elements of the apparatus may be conveniently supported within the frames, 2 by means of seats 33, which may be cast or otherwise formed to rest upon the inwardly projecting studs 4.

Assuming that the apparatus is to be employed as a cooler, brine or other cooling medium will be admitted through the inlet 9 and discharged through the outlet 11 while the milk or other liquid to be cooled is introduced at the inlet 12 and discharged-at 13.- The liquid under treatment will flow in an, opposite direction to the flow of the cooling medium, thereby affording the latter ample. opportunity in which to absorb the heat from the hot liquid. The cooling medium will flow, for example, toward the right in the lowermost element and upon reaching the end of this element will pass through the passage 7 and then flow in a reverse direction through the second lowest element in the series, the cooling medium continuing to flow upwardly and in a zigzag course until it is discharged through the outlet 11. The milk or liquid to be cooled on the other hand will enter at 12, flowing toward the right within the relatively small inner tubes 14 and'upon reaching the right hand end of the uppermost element will pass through the elbow '20 and then enter and flow toward'the left in the second element of the series, and the milk will continue to flow in a zigzag course until it is discharged through the outlet 13, the apparatus being preferably so proportioned that the discharging milk will have substantially the same temperature as the brine or cooling medium entering the apparatus. (I

The construction of the ap arat-us is such. that the inner tubes 14 and their headers may be removed with the greatest facility after each operation of the apparatus for the purpose of eleanin'g or sterilization and, when replaced-{a perfectly tight joint may be quickly formed so that there is no op.- portunity of a mixing of the liquids, Owing to the relatively small bodiesQof the liquid contained in the inner. tubes 14, it is obvious that the liquid will quickly give up its heat to the cooling medium.

I claim as my invention:

1. In an apparatus of the class described,

the combination of a plurality of tubular elements forming fluid assages, a set of fitting within the correspondin relatively small tubes a apted to be contained in each element, ahead having a fluid-tight fit upon said tubes at one end and having a tapered periphery removably tubular element, a gasket interposed etween" the tapered 'eriphery of said head and the adj acent w l of the surrounding tubular element, and a member having means for forcing it intoengagement with, said gasket to compress .the latter and thereby form a fluid-tight joint between the head, the tubu-x lar element and said member.

SH-1d element, a tapered gasket interposed 2. In an apparatus of the class described, the combination of a plurality of tubular elements forming fluid passages, a set of relatively small tubes contained in each element, a head having a fluid-tight fit upon said tubes at each end, said head having a tapered periphery removably fitting witlgin etween the tapered eriphery of each head and the adjacent wa l of the respective tubular element, a detachable elbow forming a fluid-tight connection between the tubes "within adj acentelements and having flanges engaging said' gaskets, and means for exerting a pressure upon-each elbow to produce compression upon the respective gaskets and thereby form and maintain fluid-tight joints between the respective he'adsand the surrounding tubular elements.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOSEPH WILLMANN. Witnesses:

CLARENCE A. BATEMAN,

CHAS. S. HYER. 

